Amazon Kiro: The Spec-Driven AI IDE Replacing Amazon Q

Amazon Kiro shipped initially as what AWS called a "preview" - and quietly detonated every developer's assumption about what AI-assisted coding should look like. Subsequently, new Amazon Q Developer signups are blocked, with full end-of-support arriving shortly thereafter. This is not an incremental IDE update. It is a complete architectural rebrand of AWS's coding intelligence layer, forced by the recognition that reactive autocomplete tools are failing at production scale. The fundamental clai